US3580156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swinging sector shutter for photographic cameras
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1968-12-09
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Granted: 1971-05-25
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Expires: 1988-12-09
Abstract
Abstract This disclosure pertains to a camera shutter having two swinging sectors. Each sector includes a plurality of separately mounted lamellae actuated by pin and slit connections. The slit-forming edges of each are formed by a single lamella and by a plurality of adjacent lamellae.
Inventors
- 👤 Peter Loseries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:44
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/18
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
70 words
A swinging sector camera shutter comprising first and second swinging sectors, each swinging sector including a plurality of aligned bearing studs, and a plurality of lamellae, each of said lamellae being mounted for rotary motion about the axis of a corresponding bearing stud upon actuation of the shutter and the interaction of a pin and slit device connected to the lamella of each said sector effecting actuation of the sectors.
Claim 2
Dependent Claim
70 words
A swinging sector camera shutter comprising first and second swinging sectors, each swinging sector including a plurality of aligned bearing studs, and a plurality of lamellae, each of said lamellae being mounted for rotary motion about the axis of a corresponding bearing stud upon actuation of the shutter and the interaction of a pin and slit device connected to the lamella of each said sector effecting actuation of the sectors.
Claim 3
Dependent Claim
23 words
The swinging sector camera shutter of claim 1, wherein one lamella (10a, 11a ) defines each slit forming edge of each swinging sector.
Claim 4
Dependent Claim
24 words
The swinging camera shutter of claim 1, wherein a plurality of neighboring lamellae (20a, 20b ) define slit forming edges of each swinging sector.
Claim 5
Dependent Claim
30 words
The swinging sector camera shutter of claim 3, wherein a shorter slit forming lamella (20a ) is disposed between two neighboring lamellae (20b, 20c ) of the same swinging sector.
Claim 6
Dependent Claim
71 words
The swinging sector camera shutter of claim 1, wherein each swinging sector is provided with a separate actuating lever (14, 15) with the two levers disposed in separate plAnes parallel to the lamellae swinging planes and each lever carries a pin (14a, 15a) perpendicular to its plane of swing, said pins extending into arcuate slits in the lamellae whereby the lamellae are actuated with the lever during movement of the latter.
Claim 7
Dependent Claim
29 words
The swinging sector camera shutter of claim 5, wherein each actuating lever (14, 15) is actuated in the same direction of rotation as the lamellae that are associated therewith.
Claim 8
Dependent Claim
27 words
The swinging sector camera shutter of claim 5, wherein the actuating levers (14, 15) are actuated in directions of rotation opposite to those of their associated lamellae.
Claim 9
Dependent Claim
44 words
The swinging sector camera shutter of claim 7, wherein the actuating lever (34) of the advancing swinging sector has an abutment surface on its leading edge whereby all lamellae encounter said abutment when they reach their end position after having cleared the picture window.
Claim 10
Dependent Claim
58 words
The swinging sector camera shutter of claim 2, wherein each of the two slit forming lamellae is mounted coaxially with an actuating shaft and carries on it a pin perpendicular to its plane of swing, said shaft extending into arcuate slits in the remaining lamellae whereby the latter are actuated with the movement of the slit forming lamella.
Claim 11
Dependent Claim
62 words
The swinging sector camera shutter of claim 4, wherein the shorter one of the slit forming lamellae of each swinging sector is rigidly connected coaxially with an actuating shaft, said slit forming lamella carrying a pin perpendicular to its plane of swing and extending into arcuate slits in the remaining lamellae whereby the latter are actuated with it during its swinging movement.
Claim 12
Dependent Claim
44 words
The swinging sector camera shutter of claim 1, wherein spring brakes (17, 18) are provided for the lamellae of at least the advancing swinging sector, the brakes having means for exerting their spring pressure perpendicularly to the direction of movement of the swinging sectors.
Claim 13
Dependent Claim
42 words
The swinging sector camera shutter of claim 1, wherein the swinging sectors are positioned between a base plate (1) and a cover plate (13), with a separating plate (12) between the lamellae of the advancing sector and those of the trailing sector.
Claim 14
Dependent Claim
32 words
The swinging sector camera shutter of claim 1, wherein one or two lamellae of each sector define slit formation whereby photographic exposure occurs in either direction of movement of the swinging sectors.
References Cited (Backward Citations)
US2927519A
Cited
US3479946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |